Deflector for ventilating systems



April 1929. 1. c. STERNBERG 1,708,243

DEFLECTOH FOR VENTILATING SYSTEMS Filed May 27, 1927 Patented Apr. 9,1929. i

UNITED STATES PATENT ()FFICE.

IRVING C. STERNBERG, OF NEW YORK, N. Y., ASSEGNOR T0 ARCTIC NU-AIRCORPORA- TION, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

DEFLECTOR- FOR VENTILATING SYSTEMS.

Application filed May 27, 1927. Serial No. 194,622.

This invention relates to in'iprovenients in deflectors for ventilatingsystems and it consists the matters hereinafter described and moreparticularly pointed out in the appended claim.

In the auditoriums of theater buildings and other places of publicgathering, the arrangement of the deflector casing for the dischargemouth of the ventilating system presen s a somewhat difficult problemdue to its appearance which does not harmonize or fit in with the wallfurnishings and decorations usually found in such places. Ordinarilysuch months are either covered with a grille or the months are placed inan out of the way position, both of which detracts from the mostefficient operation of the ventilating system.

The primary object of the invention is to provide a deflectorarrangement which may be placed in a richly furnished or ornamented walland which no matter from what angle the same is viewed, will it detractfrom the appearance of its surroundings.

A further object of the invention is to provide such a deflector whereinthe blades thereof are pivoted at the front of the casing so as topresent to view only the front edge thereof; the remaining portion ofthe blades being so painted or covered as to have a low visibility whichblends into the usually dark interior of the casing which thus becomesinvisible from the front thereof, leaving the opening appearing as abarred one which appearance is produced by said front edges of theblades.

These objects of the invention, as well as the many advantages thereof,will more fully appear as I proceed with my specification.

In the drawing:

Fig. 1 is a view in front elevation of a deflector arrangement embodyingthe preferred form of my invention.

Fig. 2 is a horizontal detail sectional view through the same on anenlarged scale as taken on the line 2-2 of Fig. 1.

Fig. 3 is a vertical detail sectional view through the same as taken onthe line 33 of Fig. 1.

Fig. 4 is a transverse sectional view through one of the deflectorblades and illustrates diagrammatically the arrangement of the differentcontrasting surfaces thereof of high and low visibility.

Referring now in detail to that embodiment of the invention illustratedin the accompanying drawings, 1. indicates as a whole the casing of thedeflector usually positioned in av building wall 2 and 3 indicate thelouvers or blades associated with said casing. The casing comprisesupright parallel side walls 4 aand horizontal top and bottom walls 55respectively which define a rectangular frame open at its front andrear. This frame is set in a corresponding- 1y shaped opening 6 in abuilding wall and to the front thereof is fixed associated facingenhancing members 7 of suitable ornamentation. This facing provides thefront part for the casing as a whole and engages that surface of thewall about said opening 6 to conceal the same. The rear end of theeasing frame is connected in any suitable manner with a duct 8 leadingfrom a suitable blower or exhaust apparatus. Quarter rounds 9 or othermouldings are fixed. to the rear ends of said casing and cover and engage the rear surface of the wall 3 about the opening 6. The interiorsurface of the easing frame as well as like surface of the duct 8 arepainted a nonlight-reflecting color such as black which renders them lowin visibility when viewed from the front of the casing.

In the casing thus described, the blades 3 ai'e'arranged in laterallyspaced relation and parallel with the side walls thereof. Each blade ispreferably made of wood to reduce resonance and vibration and is of asuitable thickness and width. The opposite sides 33 of the blade arepainted dead black and the front edge 8" which is semi-circular ispainted a contrasting color of high visibility as indicateddiagrammatically in Fig. 4. If desired said front or go may belongitudinally fluted but this is not absolutely necessary.

On each end of the blade is secured a metallic shoe 10 secured theretoby screws as best shown in F 3. The front or too end of this shoe whichis made semi-circular to it the front edge of the blade, has a pin 11arranged coaxially with said edge and this pin seats in a recess in thefront marginal portions of the top and bottom members 55 of the casingframe to provide a pivotal axis for said blade. The rear or heel end ofsaid shoe projects beyond the rear edge of the blade and carries a thumbscrew 12 WhlCh be manlpulated to lock the blade in the desired angularposition as best shown in Fig. 2, the shoe and screws also being paintedhlae'k to lower their visibility. By means of this shoe construction.the blades may be arranged to deflect or direct the air passing fromthe duct through the casing, to the desired part of the room to beventilated.

hen such a deflector casing is in the Wall :of' a theater or the likenothing is visible of the same, except the facing plates and the. frontedges of the blades, no, matter from Whatangle the casing as a Whole isviewed orwhat angle the blades happen to be Thus theca'sin-g appears asif havinv a plurality of narrow, vertically arranged bars, Which in itssimplicity harmonizes ;any Wall decoration. Thus the deflector easingwhich has heretofore been an eyesore .is not only rendered moreetilcient in operation so star as the desired allglliitl'lby of theblades are concerned but s also more considered by Way of illustrationonly so that I do not wish to be limited thereto ex.- cept as may bepointed out in the appended clann.

I claim as my invention:

A deflector of the kind described embodylng therein a casing open at 1tsfront and r v .'1'- r I I 1611i plu anty Oi deflector .Olaues, a shoe oneach end of the deflector blade and having a pin positioned near thefront edge of the blade and engaging a part ofthe casing at the frontedge thereof to form the pivotal axis of said blade and means on theother end of the shoe adapted to be engaged with a fixed part of thecasing to lock the blade in the desired angular position therein.

In testimony whereof, I have hereunto set my hand this 21 day of May,1927.

IRVING C. STERNBERG.

